#102F6A
Closest named color: Marine (#042E60). oklch(32.1% 0.11 261.7), rgb(16, 47, 106).
Aa
White text reads best on this color (12.83:1).
About this color
#102F6A is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.110 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.020 away. White text reads best on it, at 12.83:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.63:1 |
| White text | 12.83:1 |
Values
| HEX | #102F6A |
| RGB | rgb(16, 47, 106) |
| HSL | hsl(219, 74%, 24%) |
| OKLCH | oklch(32.1% 0.11 261.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #102F6A | 12.83:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #102F6A | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #102F6A text on white | 12.83:1 | AAA | Lc 98.5 | Preferred for body text |
| #102F6A text on black | 1.63:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFF
oklch(93.7% 0.03 260.7)
-
Step 200
200
#C5DAFF
oklch(88.5% 0.056 261.8)
-
Step 300
300
#9EC1FF
oklch(80.8% 0.096 261.6)
-
Step 400
400
#6A9EFF
oklch(70.6% 0.153 261.9)
-
Step 500
500
#4082FF
oklch(63.1% 0.198 261.6)
-
Step 600
600
#0762FF
oklch(55.7% 0.245 261.6)
-
Step 700
700
#0051DB
oklch(49.2% 0.221 261.6)
-
Step 800
800
#0041B6
oklch(42.7% 0.194 261.7)
-
Step 900
900
#003699
oklch(37.7% 0.169 261.6)
-
Step 950
950 (this color)
#102F6A
oklch(32.1% 0.11 261.7)
#102F6A with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #04366C | 0.020 |
| Deuteranopia (no green cones) | #002E69 | 0.012 |
| Tritanopia (no blue cones) | #003D47 | 0.085 |
| Achromatopsia (no color) | #323232 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102F6A
#102F6A
oklch(32.1% 0.11 261.7)
- #442F00
#442F00
oklch(32.1% 0.066 81.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #102F6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.020
- Marine Blue #01386A ΔE 0.026
- Prussian Blue #1D3557 ΔE 0.043
- Midnight Blue #191970 ΔE 0.053
- Twilight Blue #0A437A ΔE 0.062
- Midnight Green #073B4C ΔE 0.071
- Dark Blue Grey #1F3B4D ΔE 0.072
- Space Cadet #2B2D42 ΔE 0.076
Use #102F6A in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.